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Handle properly script insets which nucleus has more than one

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element (like {a'}^{2}). (froward port from 14802)

	* src/mathed/math_nestinset.C (script): when creating a script
	inset, handle specially previous atom if it is a MathBraceInset
	(this is used in interactive input).

	* src/mathed/math_parser.C (parse1): when creating a script inset,
	handle specially previous atom if it is a MathBraceInset (this is
	used in parsing phase).

	* src/mathed/math_scriptinset.C (write): put nucleus into braces
	if it contains more than one element or is itself a script inset.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14819 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Jean-Marc Lasgouttes 2006-08-23 10:57:49 +00:00
parent b124158c34
commit b4d20b81af
3 changed files with 14 additions and 5 deletions
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6
src/mathed/math_nestinset.C
View File

@ -1368,6 +1368,12 @@ bool MathNestInset::script(LCursor & cur, bool up, string const &
}
--cur.pos();
MathScriptInset * inset = cur.nextAtom().nucleus()->asScriptInset();
// special handling of {}-bases
// is this always correct?
if (inset->nuc().size() == 1
&& inset->nuc().back()->asBraceInset())
inset->nuc() = inset->nuc().back()->asNestInset()->cell(0);
cur.push(*inset);
cur.idx() = 1;
cur.pos() = 0;

7
src/mathed/math_parser.C
View File

@ -813,10 +813,9 @@ void Parser::parse1(MathGridInset & grid, unsigned flags,
MathScriptInset * p = cell->back().nucleus()->asScriptInset();
// special handling of {}-bases
// is this always correct?
// It appears that this is wrong (Dekel)
//if (p->nuc().size() == 1 && p->nuc().back()->asNestInset() &&
// p->nuc().back()->extraBraces())
// p->nuc() = p->nuc().back()->asNestInset()->cell(0);
if (p->nuc().size() == 1
&& p->nuc().back()->asBraceInset())
p->nuc() = p->nuc().back()->asNestInset()->cell(0);
parse(p->cell(p->idxOfScript(up)), FLAG_ITEM, mode);
if (limits) {
p->limits(limits);

6
src/mathed/math_scriptinset.C
View File

@ -420,7 +420,11 @@ bool MathScriptInset::idxUpDown(LCursor & cur, bool up) const
void MathScriptInset::write(WriteStream & os) const
{
if (nuc().size()) {
os << nuc();
if (nuc().size() == 1
&& ! nuc().begin()->nucleus()->asScriptInset())
os << nuc();
else
os << '{' << nuc() << '}';
//if (nuc().back()->takesLimits()) {
if (limits_ == -1)
os << "\\nolimits ";